/*
 * Copyright 2019 Ververica GmbH.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.ververica.statefun.flink.core;

final class StatefulFunctionsUniverseValidator {

  void validate(StatefulFunctionsUniverse statefulFunctionsUniverse) {
    // TODO: complete this
    if (statefulFunctionsUniverse.ingress().isEmpty()) {
      throw new IllegalStateException("There are no ingress defined.");
    }
    if (statefulFunctionsUniverse.sources().isEmpty()) {
      throw new IllegalStateException("There are no source providers defined.");
    }
    if (statefulFunctionsUniverse.routers().isEmpty()) {
      throw new IllegalStateException("There are no routers defined.");
    }
    if (statefulFunctionsUniverse.functions().isEmpty()) {
      throw new IllegalStateException("There are no function providers defined.");
    }
  }
}
